Description:Asteroids Extreme: Asteroids with improved graphics! Shoot asteroids and alien spaceships to try and get the high score. Also try playing free play to make up your own game. To play the game, move your spaceship with the arrow keys while shooting asteroids and alien spaceships with the SPACE bar. Press "Play Game" to play the game or press "free play" to add asteroids and alien spaceships by pressing the number keys and the "-" and "=" keys. : , press spacebar to shoot, -: (free play) new big alien spaceship, 1: (free play) toggle invincibility, 0: (free play) new small alien spaceship, 2: (free play) slower asteroids, =: (free play) new asteroid,movement: arrow keys